Featured Research

from universities, journals, and other organizations

Researchers Develop Electronic Nose For Multimedia

Date:
April 2, 2004
Source:
University Of Alberta
Summary:
Dr. Mrinal Mandal, a professor in the U of A Department of Electrical and Computer Engineering, and Rafael Castro, a master's student studying under Mandal, have developed an apparatus that will recognize the odors of ten different smell groupings--from fruits, to coffees, to gases, to spices and to just about everything in between.

Imagine you are a thousand miles from home, and your mother cooks your favourite meal for you. Then she takes a photo of it and sends it to you by email. And then, when you open the photo, a wave of aroma--your Mom's cooking--fills the air.

Related Articles


Two researchers at the University of Alberta have been working to make this type of scenario a reality. Their latest success, the development of an electronic nose for multimedia use, has been reported recently in IEEE Transactions on Consumer Electronics.

Dr. Mrinal Mandal, a professor in the U of A Department of Electrical and Computer Engineering, and Rafael Castro, a master's student studying under Mandal, have developed an apparatus that will recognize the odors of ten different smell groupings--from fruits, to coffees, to gases, to spices and to just about everything in between. The device connects to a PC, which then determines what smell the electronic nose has captured.

So far, smell detectors have been developed and are currently used in various industry capacities, such as to detect cyanide gases and rotten fish--jobs that would make people sick or would be unpleasant, Mandal said. He added that these 'noses' are expensive and wouldn't be appropriate for multimedia use because they have been designed only to complete specific, narrowly defined tasks.

Mandal said that Castro built his electronic nose entirely with inexpensive electronic parts that can be found in any local hardware store.

"The nose works in a more complex way than the eyes do," said Mandal, explaining the challenges in building the system. "There are primarily three colour receptors in the human eye, but there are several million smell receptors in the nose and about 1,000 different types of receptors, so you need to create at least 1,000 smell channels to build a good electronic nose."

Mandal and Castro also ran into a few difficulties they didn't expect. For one, the fact that smells--unlike visual images or audio signals--require the movement of molecules, means that smells can be sticky and can linger. To solve this problem, Castro devised a pump "cleaning system".

According to Mandal and Castro, the next step in order to add smell to the multimedia experience is to develop a low-cost smell generation system--a challenge Castro believes will be easier than it was to develop the smell capturing system.

Mandal, who has recently written a book on multimedia, envisions a mass-produced, said an inexpensive electronic nose may become available sometime in the next five to ten years. However, Mandal and Castro both say their interest in the research is more academic than commercial.

"It is a big challenge. And I love challenges," Castro said.


Story Source:

The above story is based on materials provided by University Of Alberta. Note: Materials may be edited for content and length.


Cite This Page:

University Of Alberta. "Researchers Develop Electronic Nose For Multimedia." ScienceDaily. ScienceDaily, 2 April 2004. <www.sciencedaily.com/releases/2004/04/040401075719.htm>.
University Of Alberta. (2004, April 2). Researchers Develop Electronic Nose For Multimedia. ScienceDaily. Retrieved March 2, 2015 from www.sciencedaily.com/releases/2004/04/040401075719.htm
University Of Alberta. "Researchers Develop Electronic Nose For Multimedia." ScienceDaily. www.sciencedaily.com/releases/2004/04/040401075719.htm (accessed March 2, 2015).

Share This


More From ScienceDaily



More Computers & Math News

Monday, March 2, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

HP to Buy Aruba Networks in $3B Deal

HP to Buy Aruba Networks in $3B Deal

Reuters - Business Video Online (Mar. 2, 2015) Hewlett-Packard is boosting its mobile computing business... buying California-based Aruba Networks- a wi-fi network gear maker for $24.67 per share. Leah Duncan reports. Video provided by Reuters
Powered by NewsLook.com
Can Curved Screen Give Samsung the Edge?

Can Curved Screen Give Samsung the Edge?

Reuters - Business Video Online (Mar. 2, 2015) South Korea&apos;s Samsung Electronics Co Ltd unveiled its latest Galaxy S smartphones, featuring a slim body made from aircraft-grade metal, in a bid to reclaim the throne of undisputed global smartphone leader from Apple Inc. Hayley Platt reports. Video provided by Reuters
Powered by NewsLook.com
Smartphone Giants Unveil Latest Models at Technology Show

Smartphone Giants Unveil Latest Models at Technology Show

AFP (Mar. 2, 2015) Mobile providers have been unveiling their upcoming models at the Mobile World Congress in Barcelona, showing off the latest in smartphone technology. Duration: 00:57 Video provided by AFP
Powered by NewsLook.com
Mobile World Looks to 5G

Mobile World Looks to 5G

Reuters - Business Video Online (Mar. 2, 2015) The wireless industry&apos;s annual conference gets underway in Barcelona with 85,000 executives taking part and numerous new smartphones and watches being launched. As Ivor Bennett reports from the show the race for 5G is one of the key themes. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins